Global Patent Index - EP 0846994 B1

EP 0846994 B1 20010606 - Flow control for a hydraulic pumping installation

Title (en)

Flow control for a hydraulic pumping installation

Title (de)

Stromregelanordnung für eine hydraulische Fördereinrichtung

Title (fr)

Dispositif de régulation de débit pour une pompe hydraulique

Publication

EP 0846994 B1 20010606 (DE)

Application

EP 97119584 A 19971108

Priority

DE 19652420 A 19961209

Abstract (en)

[origin: US6012907A] A flow-regulating arrangement for a hydraulic transport device such as a vane-cell pump includes partial-transport flow throttles which operate independently of one another and which are arranged in parallel to deliver output of the hydraulic transporting device to a hydraulic load. One of the partial transport flow throttles responds to the pressure difference between working pressure of the hydraulic transporting device and pressure within a pressure chamber internal to the device.

IPC 1-7

G05D 7/01

IPC 8 full level

F04C 14/26 (2006.01); F16K 31/68 (2006.01); F16K 31/70 (2006.01); G05D 7/01 (2006.01)

CPC (source: EP)

F04C 14/26 (2013.01); G05D 7/0126 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

US 6012907 A 20000111; DE 19652420 A1 19980610; DE 59703726 D1 20010712; EP 0846994 A1 19980610; EP 0846994 B1 20010606; JP 3919912 B2 20070530; JP H10187246 A 19980714

DOCDB simple family (application)

US 98672097 A 19971208; DE 19652420 A 19961209; DE 59703726 T 19971108; EP 97119584 A 19971108; JP 33879297 A 19971209